Air Liquide OERLIKON MINICITO 1700 Mounting instructions

EN Safety instruction for use and maintenance - Do not destroy this manual
FR Instruction de securite d’emploi et d’entretien - Conserver ce livret d’instructions
ES Instrucciones de seguridad, empleo y mantenimiento - Conservar el presente manual
DE etriebs-Wartungs und Sicherheitsanleitung - Das vorliegende Handbuch gut aufbewahren
PT Instrucões de segurança de utilização e de manutenção - Conserve este manual
SV Instruktioner för säkerhet, använding och underåll - Spar denna handledning
NL Veiligheidsinstructies voor gebruik en onderhoud - ewaar deze handleiding
www.airliquidewelding.com
Air Liquide Welding France • 25, boulevard de la Paix
CS30003 Cergy Saint Christophe • F-95895 CERGY PONTOISE Cedex
Cat.
Nr.:
Rev.:
MINICITO 1700
80003522
04
26. 04. 2016

(GB) 1
GB GB
SUMMARY
1.0 SPECIFICATIONS AND DESCRIPTION ..........................GB-2
1.1 SPECIFICATIONS ..................................... GB-2
1.2 DESCRIPTION ...................................... GB-2
1.3 STANDARD ACCESSORIES ............................... GB-2
1.4 DUTY CYCLE AND OVERHEATING FACTOR ....................... GB-3
1.5 VOLT-AMPERE CURVES ................................. GB-3
2.0 INSTALLATION ........................................GB-4
2.1 CONNECTING THE UNIT TO THE ELECTRIC CIRCUIT .................. GB-4
2.2 SELECTING A LOCATION ..................................GB-4
2.3 CHANGE OF POLARITY...................................GB-4
2.4 FITTING THE TORCH ................................... GB-4
2.5 INSTALLATION OF REEL AND BRAKE ADJUSTMENT .................. GB-6
2.6 CONNECTING THE UNIT AND PREPARING TO WELD .................. GB-6
3.0 OPERATION ..........................................GB-7
3.1 CONTROLS ON FRONT PANEL .............................. GB-7
3.2 CONTROLS ON REAR PANEL............................... GB-7
4.0 MAINTENANCE AND TROUBLE-SHOOTING .......................GB-7
4.1 MAINTENANCE OF TORCH ................................ GB-7
4.2 MAINTENANCE AND REPLACEMENT OF GUIDE CABLE COATING ............ GB-8
4.3 TROUBLESHOOTING ................................... GB-8
SPARE PARTS ..........................................I-III
CIRCUIT DIAGRAMS .......................................IV

SPECIFICATIONS AND DESCRIPTION
GB
(GB) 2
GB
1.0 SPECIFICATIONS AND DESCRIPTION
1.1 SPECIFICATIONS 1.2 DESCRIPTION
Is a complete semi-automatic welding unit with continu-
ous DC current and constant voltage. This compact appa-
ratus, capable of welding materials of 0.5 mm (24 gauge)
to 6.35 mm (1/4 in) thickness, is ideal for use in small-
scale manufacturing,garages and body shops. Easy to
use, has a wide range of applications and produces a
high-quality welding arc. Is portable, weighing 28 kg (62
lb) and performs well across its whole range of adjust-
ment. An optional torch with incorporated pay-out reel of-
fers a practical instant solution.
1.3 STANDARD ACCESSORIES
1. Power supply cable of 2.4 m (8 ft).
2. Earth cable of 3 m (10 ft) with pliers.
3. Adapter for reels of 1 kg (2 lb)
PRIMARY
Single phase supply 230 V
Frequency 50 Hz / 60 Hz
Effective consuption 11 A
Maximum consuption 21 A
SECONDARY
Open circuit voltage 18 ÷ 32 V
Welding current 120 A
Duty cycle 25 %
Protection class IP 21
Insulation class H
Weight 27 Kg
Dimensions 260 x 430 x 400
European Standards EN 60974.1
1
2
3

SPECIFICATIONS AND DESCRIPTION
GB
(GB) 3
GB
1.4 DUTY CYCLE AND OVERHEATING FACTOR
The duty cycle is the percentage of time within ten minutes during which the unit can function under pressure
without overheating. If the unit should overheat, the output current will stop and the overheating indicator will
light up. If this happens, allow the unit to cool down for 15 minutes. Reduce the intensity of the welding current,
the voltage or the working cycle before re-starting.
•An excessive working cycle can damage the unit and invalidate the guarantee.
1.5 VOLT-AMPERE CURVES
The volt-ampere curves indicate the maximum intensity and voltage of the welding current generated by the
unit.
Curves for the other setting values can be extrapolated from those shown below.
DUTY CYCLE FACTOR (%)
WELDING CURRENT (amps)

INSTALLATION
GB
(GB) 4
GB
2.0 INSTALLATION
2.1 CONNECTING THE UNIT TO THE ELECTRIC CIR-
CUIT
This equipment tolerates a variation of +/- 10% in
supply voltage. Ensure that the connector is well-
equipped with fuses capable of supporting the
intensity indicated in the table of specifications for
the unit.
Fumes and gas produced by welding
can be dangerous if inhaled for prolonged peri-
ods of time. Observe the following advice:
2.2 SELECTING A LOCATION
Fumes and gas produced by welding
can be dangerous if inhaled for prolonged peri-
ods of time. Observe the following advice:
1. Consult the table of specifications for electri-
cal energy requirements.
2. The operator should have free access to con-
trol and regulatory equipment and to all con-
nections.
3. Do not position the unit is small or enclosed
areas. Ventilation of the area is extremely
important. Ensure that air admission points
are not obstructed and that there is no risk of
obstruction during operation, in order to elimi-
nate possible risk of overheating and damage
to the unit.
4. Avoid dirty and dusty locations where dust
could be drawn into the inside of the unit by
the ventilation system.
5. The equipment (including the cables) must
not constitute an obstacle to the free move-
ment or work activities of other people.
6. Position the unit on a stable surface to prevent
it from falling or being knocked over.
7. Bear in mind the possibility of the unit falling
when placing it high above floor level.
2.3 CHANGING THE POLARITY
EXTINGUISH THE UNIT BEFORE ALTERING
CONNECTIONS
USE WITH NON-GAS WIRE (check polarity with
the wire manufacturer)
1. Connect the earth cable to the positive termi-
nal located inside the unit.
2. Connect the welding cable (Ref 1 – Fig.1) to
the negative terminal located inside the unit.
USING WITH WIRE AND INSERT GAS FOR
WELDING SOFT STEEL.
1. Connect the earth cable to the negative termi-
nal located inside the unit.
2. Connect the welding cableto the negative ter-
minal located inside the unit.
3. Install a tube between the pressure reducing
valve of the gas canister and the input connec-
tor positioned behind the unit.
2.4 FITTING THE TORCH
EXTINGUISH THE UNIT BEFORE PROCEEDING
TO CONNECTIONS
Before connecting the torch, ensure that the reel
installed corresponds to the diameter of the wire
to be used. Also check that the dimensions of the
slot in the drive roller, the contact tube and the
guiding tube correspond. Check that the guiding
tube does not touch the rollers.
To install the welding torch, follow the instruc-
tions below:

INSTALLATION
GB
(GB) 5
GB
INSTALLING THE WELDING TORCH
EXTINGUISH THE UNIT BEFORE PROCEEDING TO CONNECTIONS
1
2
3
4

INSTALLATION
GB
(GB) 6
GB
2.5 INSTALLING THE WIRE REEL AND BRAKE
ADJUSTMENT.
1. Place reel on hub and turn the brake setting
screw (refer to fig. 2) until gentle force is
required to uncoil the reel. Use an 11/16 in
wrench.
2. Open the rollers on the drive unit.
3. Repoint the wire and cut off the tip.
4. Thread the wire over the rollers then insert it
in the torch guide sheath.
5. Close and re-tighten rollers on the wire.
6. Remove the nozzle and the contact tube at the
end of the torch.
7. Press the trigger until the wire emerges.
8. Replace the contact tube and the nozzle.
9. Withdraw wire to check roller pressure.
Tighten the clamp fixture sufficiently to pre-
vent any slip. Cut off surplus wire and close
the waste door.
2.6 CONNECTING THE UNIT AND PREPARING TO
WELD
1. Open the gas pressure reducing tap and adjust
the flow rate according to the welding posi-
tion.
2. Position the earth clamp on the object to be
welded, at a point free of rust, paint or plastic.
-The low settings of the power on switch
should be used for materials of low thickness.
-Remember that each position of the power on
switch corresponds to one wire advance
speed, which can be adjusted with the help of
an appropriate potentiometer.
Fig. 2

OPERATION
GB
(GB) 7
GB
3.0 OPERATION
3.1 CONTROLS ON FRONT PANEL
1. SPEED OF WIRE ADVANCE
Use this control to adjust the speed of wire
advance. The greater the welding intensity, the
greater the wire speed required (see label
affixed to unit).
2. POWER SELECTOR
The greater the thickness of the material to be
welded, the higher the power selector must be set
(see label affixed to unit).
Do not operate the selector whil ewelding.
The same switch is used to ignite and extin-
guish the unit.
1. TABLE OF SPECIFICATIONS
3.2 REAR PANEL
1. GAS INPUT CONNECTOR
2. POWER SUPPLY CABLE
4.0 MAINTENANCE AND TROUBLESHOOTING
DISCONNECT THE POWERSUPPLY
BEFORE CARRYING OUT ANY MAINTENANCE
WORK.
Dust should be carefully removed from the inside
of the unit on a regular basis (about every 5 - 6
months), using a spray gun (after removing the
side panels). BE CAREFUL NOT TO TWIST THE
JET OF THE TORCH TO AVOID DAMAGING IT.
The equipment should be serviced more fre-
quently when working in dirty or dusty conditions.
4.1 MAINTENANCE OF THE TORCH
NOZZLE: spray regularly with an anti-bonding
product and clean the inside of the nozzle.
To replace the contact tube:
1. Remove the gas nozzle.
2. Unscrew the contact tube.
3. Press the trigger: after a few seconds, wire
emerges from the tip of the torch.
4. Insert the wire into the new contact tube and
screw the tube on to the torch.
5. Replace the gas nozzle.
6. Cut off surplus wire.
DIFFUSER: the gas output openings should
always be kept clean and clear of obstruction.
To change the diffuser:
1. Remove the gas nozzle.
2. Unscrew the contact tube.
3. Unscrew the diffuser and replace it.
4. Screw the contact tube back on.
5. Replace the gas nozzle.

MAINTENANCE AND TROUBLESHOOTING
GB
(GB) 8
GB
4.2 CLEANING AND REPLACING THE COATING
guide cable
4.3 TROUBLESHOOTING
TYPE OF FAILURE PROBABLE CAUSE SOLUTION
Does not operate Defective power supply cable (one or moreshut-off phases) Inspect and repair
Fuse blown Replace
Irregular uncoiling of wire Insufficient pressure from rollers Try to increase the clamping pressure of the rollers
Casing guide wire damaged Replace
Wire striated, not suited to welding or excessively worn Invert or replace wire
Coil brake too tightly applied Release the brake by slightly loosening the setting screw
Wire is rusted, of poor quality or badly coiled with tangled tips Fix by removing defective turns.
If the problem persists, replace coil
Low welding power Earth cable not connected Check condition of cable and ensure that clamp is properly attached to compo-
nent, at a point free of rust, grease or paint
Wire disconnected or badly connected to the switches Inspect, re-tighten or replace if necessary
Switches defective Check status of contacts and operation of switches
Defective rectifier Check that there are no signs of burns.
If necessary, replace the rectifier
Welds porous or spongy Absence of gas Check presence of gas and pressure in bottle
Draughts in the welding area Use a protective screen. If necessary, increase the gas flow.
Orifices on diffuser obstructed Clean orifices on diffuser with compressed air
Gas escape due to a pipe break Inspect and replace the pipe
Solenoid valve jammed Check operation of solenoid valve and its electrical connection
Reducing valve defective Check the operation of the reducing valve by disconnecting the pipe linking it to
the station
Poor quality of gas or wire The gas must be perfectly dry. Change the bottle or use a different type of wire
The gas emerges continuously Solenoid valve worn or contaminated Lift up the coil, clean the orifices and the blanking cap
The trigger on the torch is unserviceable Trigger on torch defective, disconnected or with broken electri-
cal wiring Disconnect the torch from its connector and short circuit the controls. If the station is in working condition, check the wires and the trigger
Fuse burned out Replace with another fuse with the same rating
Mains isolator defective Clean with compressed air, check that wires are tightened on the switch and
replace if necessary
Defective electronic circuit Replace the circuit
Before removing
the coating, vapo
rise the low-vis-
cosity oil lubri-
cate the sealing
ring
Before attaching the new
coating, apply grease to
the rubber part.
1. SHUT DOWN
the unit
2. Follow the
instructions in
the diagram
below

(F) 1
FF
SOMMAIRE
1.0 CARACTÉRISTIQUES ET DESCRIPTION ............................F-2
1.1 CARACTÉRISTIQUES ...................................... F-2
1.2 DESCRIPTION ......................................... F-2
1.3 FOURNITURE STANDARD ................................... F-2
1.4 FACTEUR DE MARCHE ET SURCHAUFFE............................ F-3
1.5 COURBES VOLT-AMPERE ................................... F-3
2.0 INSTALLATION ...........................................F-4
2.1 RACCORDEMENT DU POSTE AU RÉSEAU ÉLECTRIQUE .................... F-4
2.2 CHOIX D'UN EMPLACEMENT...................................F-4
2.3 CHANGEMENT DE POLARITÉ...................................F-4
2.4 MISE EN PLACE DE LA TORCHE ................................ F-4
2.5 INSTALLATION DE LA BOBINE DE FIL ET RÉGLAGE DU FREIN ................ F-6
2.6 BRANCHEMENTS ET PRÉPARATION DE L'APPAREIL POUR LE SOUDAGE .......... F-6
3.0 UTILISATION.............................................F-7
3.1 COMMANDES DU PANNEAU AVANT .............................. F-7
3.2 COMMANDES DU PANNEAU ARRIÈRE ............................. F-7
4.0 MAINTENANCE ET AIDE AU DÉPANNAGE ...........................F-7
4.1 ENTRETIEN DE LA TORCHE .................................. F-7
4.2 ENTRETIEN ET REMPLACEMENT DE LA GAINE GUIDE CABLE................. F-8
4.3 AIDE AU DÉPANNAGE ..................................... F-8
PIÈCES DÉTACHÉES ........................................I-III
SCHÉMAS ÉLECTRIQUES ...................................... IV